theory11 Bicycle Guardian Playing Cards (Black, 3.5 x 2.5-Inch) The traditional Bicycle back design has been reborn. Exhibiting the same classic architecture as the originals, the Guardian design was recreated from the ground up. An International Bestseller. This is what the classic Bicycle Angels look like on steroids. This is what the classic Bicycle Angels look like on steroids. Printed on Bicycle's signature Air Cushion Finish, the deck allows you to perform and flourish with ease, and look frickin' awesome doing it. Featuring embossed, raised titling and the metallic foil logo emblem.